Vfrdtyky

Info

• Environment: Hybrid App


• Platform: Android


• Adapter: IndexedDB


• Server: CouchDB&PouchDB Server

Hello , I have been trying to implement the design document update_handler in couchdb to be utilized when the pouchdb data syncs and is stored in the couchdb .
Aim is to verify the storage of data in the central CouchDB. This is required to as for the security verification and other functionality implementation. I have tried using pouchdb-update plugin but can get a concrete way to achieve is below is the design doc and the code that will invoke the updates function on couchdb when data is synced to the couchdb.

  {

     "_id": "_design/secure",

     "_rev": "27-d7fbdd8ea925df711d2d4329dbb032c2",

     "language": "javascript",

     "updates": {

     "update": "function(doc,req){if(!doc)return[null,'Doc doesnt exists! Please Create a new 

           document']doc.secured = doc.secured == false?true:false;return [doc,'Ok,Secured']}"

            }

   }

And I want to invoke it to modifiy my docs once it is stored in couchdb . The docs will be syncing from the pouchdb that is running in a cordova app background . This is what I have tried to implement including POUCHDB-UPDATE plugin.

    var argv = require('minimist')(process.argv.slice(2));



    var logLocation=argv.pouchlog;

    var controlFileHandler=argv.controlfh;



    var express = require('express')

    var app = express()

    var PouchDB = require('pouchdb').plugin('pouchdb-update');

    let InMemPouchDB = PouchDB.defaults({db: require("memdown"), migrate: false})

    app.use('', require('express-pouchdb')(InMemPouchDB, 

    {mode:'minimumForPouchDB',logPath:logLocation}))

    app.listen(3005)

    var db = new InMemPouchDB('todos',{revs_limits: 1});

    var remoteCouch = 'http://127.0.0.1:5984/todos';

    db.changes({live: true}).on('change', function(){

    db.sync(remoteCouch,{live:true,retry:true}).on('active',function(){

    db.update('_design/secure', function(res){

    console.log("Data Secured");

    console.log(res);

          })

     })

But its not working I am having problem to invoke the updates function on the couchdb, Please can you guys help me in the implementation . The aim is to trigger the update_handler function only when the data is stored in the Couchdb ( and indicates the data syncing between multiple pouchdb is not secure unless it is stored in the couchdb ). Please help me solve the issue or if there is any simpler way to achieve this, any help will be deeply appreciated.